* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary: #4a90e2;
    --primary-dark: #2a5298;
    --primary-darker: #1e3c72;
    --success: #28a745;
    --danger: #dc3545;
    --bg: #f0f4f9;
    --card-shadow: 0 4px 24px rgba(74, 144, 226, 0.10);
    --card-shadow-hover: 0 16px 40px rgba(74, 144, 226, 0.18);
    --radius: 16px;
    --radius-sm: 10px;
    --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: var(--bg);
    color: #333;
    min-height: 100vh;
}

.dashboard {
    min-height: 100vh;
    background: var(--bg);
}

/* ========== HEADER ========== */
.header {
    background: linear-gradient(120deg, var(--primary-darker) 0%, var(--primary-dark) 100%);
    color: white;
    padding: 22px 40px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 4px 32px rgba(30, 60, 114, 0.25);
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(8px);
}

.header h1 {
    font-size: 28px;
    font-weight: 800;
    letter-spacing: -0.5px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.header h1::before {
    content: '';
    display: inline-block;
    width: 36px;
    height: 36px;
    background: linear-gradient(135deg, rgba(255,255,255,0.3) 0%, rgba(255,255,255,0.1) 100%);
    border-radius: 10px;
    border: 1.5px solid rgba(255,255,255,0.25);
}

.btn-logout {
    background: rgba(255, 255, 255, 0.12);
    color: white;
    padding: 10px 24px;
    border: 1.5px solid rgba(255, 255, 255, 0.35);
    border-radius: var(--radius-sm);
    cursor: pointer;
    text-decoration: none;
    transition: var(--transition);
    font-weight: 600;
    font-size: 14px;
    letter-spacing: 0.3px;
}

.btn-logout:hover {
    background: rgba(255, 255, 255, 0.22);
    border-color: rgba(255, 255, 255, 0.7);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.18);
}

/* ========== ALERT ========== */
.alert {
    padding: 15px 20px;
    margin: 24px 40px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    gap: 12px;
    animation: slideDown 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border-left: 4px solid;
    font-weight: 500;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.07);
    font-size: 14px;
}

@keyframes slideDown {
    from { opacity: 0; transform: translateY(-16px); }
    to   { opacity: 1; transform: translateY(0); }
}

.alert-success {
    background: linear-gradient(90deg, #d4f5e0 0%, #c3e6cb 100%);
    color: #145c27;
    border-left-color: var(--success);
}

.alert-error {
    background: linear-gradient(90deg, #fde8ea 0%, #f5c6cb 100%);
    color: #7a1b24;
    border-left-color: var(--danger);
}

.alert i { font-size: 18px; }

/* ========== STATS ========== */
.stats-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 22px;
    padding: 36px 40px;
}

.stat-card {
    background: white;
    padding: 28px 30px;
    border-radius: var(--radius);
    box-shadow: var(--card-shadow);
    text-align: center;
    border-top: 4px solid var(--primary);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.stat-card::after {
    content: '';
    position: absolute;
    bottom: -40px;
    right: -40px;
    width: 120px;
    height: 120px;
    background: radial-gradient(circle, rgba(74, 144, 226, 0.08) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

.stat-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--card-shadow-hover);
    border-top-color: var(--primary-dark);
}

.stat-number {
    font-size: 46px;
    font-weight: 900;
    margin-bottom: 10px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
}

.stat-label {
    font-size: 12px;
    color: #888;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    font-weight: 700;
    margin-top: 4px;
}

/* ========== CHART ========== */
.chart-container {
    position: relative;
    height: 380px;
    margin-top: 16px;
    background: linear-gradient(135deg, rgba(74, 144, 226, 0.04) 0%, transparent 100%);
    border-radius: var(--radius-sm);
    padding: 16px;
    border: 1px solid rgba(74, 144, 226, 0.08);
}

/* ========== MAIN CONTENT ========== */
.content-wrapper {
    max-width: 1400px;
    margin: 0 auto;
    padding: 36px 40px;
    display: flex;
    flex-direction: column;
    gap: 28px;
}

.left-column,
.right-column {
    display: flex;
    flex-direction: column;
    gap: 28px;
}

.section {
    background: white;
    padding: 32px 36px;
    border-radius: var(--radius);
    box-shadow: var(--card-shadow);
    transition: var(--transition);
    border: 1px solid rgba(74, 144, 226, 0.08);
    position: relative;
    overflow: hidden;
}

.section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary) 0%, var(--primary-dark) 100%);
    border-radius: var(--radius) var(--radius) 0 0;
}

.section:hover {
    box-shadow: var(--card-shadow-hover);
    transform: translateY(-4px);
}

.section h2 {
    font-size: 20px;
    margin-bottom: 24px;
    color: var(--primary-darker);
    border-bottom: 2px solid rgba(74, 144, 226, 0.15);
    padding-bottom: 14px;
    font-weight: 800;
    letter-spacing: -0.2px;
    display: flex;
    align-items: center;
    gap: 10px;
}

/* ========== FORM ========== */
.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 700;
    color: var(--primary-darker);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.7px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 13px 16px;
    border: 2px solid #e8edf4;
    border-radius: var(--radius-sm);
    font-size: 14px;
    transition: var(--transition);
    font-family: inherit;
    background: #f7f9fc;
    color: #333;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    background: white;
    box-shadow: 0 0 0 4px rgba(74, 144, 226, 0.10);
    transform: translateY(-1px);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: #bec8d6;
}

.btn {
    padding: 13px 30px;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-weight: 700;
    transition: var(--transition);
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    font-family: inherit;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: white;
    width: 100%;
    box-shadow: 0 6px 20px rgba(74, 144, 226, 0.35);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 28px rgba(74, 144, 226, 0.45);
}

.btn-primary:active {
    transform: translateY(0px);
    box-shadow: 0 4px 12px rgba(74, 144, 226, 0.3);
}

/* ========== TABLE ========== */
.table-responsive {
    overflow-x: auto;
    border-radius: var(--radius-sm);
    border: 1px solid rgba(74, 144, 226, 0.10);
}

.table {
    width: 100%;
    border-collapse: collapse;
}

.table thead {
    background: linear-gradient(120deg, var(--primary) 0%, var(--primary-dark) 100%);
}

.table th {
    padding: 16px 18px;
    text-align: left;
    font-weight: 700;
    color: white;
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 1.2px;
    white-space: nowrap;
}

.table td {
    padding: 16px 18px;
    border-bottom: 1px solid #f0f4fa;
    font-size: 14px;
    color: #555;
    transition: background 0.2s ease;
    vertical-align: middle;
}

.table tbody tr {
    transition: var(--transition);
}

.table tbody tr:last-child td {
    border-bottom: none;
}

.table tbody tr:hover {
    background: linear-gradient(90deg, rgba(74, 144, 226, 0.06) 0%, transparent 80%);
}

.table tbody tr:hover td:first-child {
    border-left: 3px solid var(--primary);
    padding-left: 15px;
}

.url-cell a {
    color: var(--primary);
    text-decoration: none;
    word-break: break-all;
    font-weight: 600;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.url-cell a:hover {
    color: var(--primary-dark);
    text-decoration: underline;
}

/* ========== STATUS ========== */
.status-dot {
    width: 9px;
    height: 9px;
    border-radius: 50%;
    display: inline-block;
    margin-right: 6px;
}

.status-dot.active {
    background: var(--success);
    box-shadow: 0 0 0 3px rgba(40, 167, 69, 0.2);
    animation: pulse 2s infinite;
}

.status-dot.inactive {
    background: #ccc;
}

@keyframes pulse {
    0%, 100% { opacity: 1; box-shadow: 0 0 0 3px rgba(40, 167, 69, 0.2); }
    50%       { opacity: 0.7; box-shadow: 0 0 0 6px rgba(40, 167, 69, 0.08); }
}

.status-badge {
    display: inline-flex;
    align-items: center;
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.6px;
    border: none;
    cursor: pointer;
    transition: var(--transition);
}

.status-badge.active {
    background: rgba(40, 167, 69, 0.12);
    color: #1a7a34;
    box-shadow: 0 2px 8px rgba(40, 167, 69, 0.15);
}

.status-badge.active:hover {
    background: rgba(40, 167, 69, 0.2);
    transform: scale(1.04);
}

.status-badge.inactive {
    background: rgba(220, 53, 69, 0.10);
    color: #a01a24;
    box-shadow: 0 2px 8px rgba(220, 53, 69, 0.12);
}

.status-badge.inactive:hover {
    background: rgba(220, 53, 69, 0.18);
    transform: scale(1.04);
}

/* ========== ACTIONS ========== */
.actions {
    display: flex;
    gap: 6px;
}

.btn-edit,
.btn-delete {
    background: none;
    border: none;
    cursor: pointer;
    font-size: 16px;
    transition: var(--transition);
    padding: 0;
    border-radius: 8px;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.btn-edit {
    color: var(--primary);
}

.btn-edit:hover {
    background: rgba(74, 144, 226, 0.12);
    transform: scale(1.12);
}

.btn-delete {
    color: var(--danger);
}

.btn-delete:hover {
    background: rgba(220, 53, 69, 0.12);
    transform: scale(1.12);
}

.toggle-form,
.delete-form {
    display: inline;
}

.no-data {
    text-align: center;
    padding: 48px 20px;
    color: #aab4c4;
    font-size: 15px;
    letter-spacing: 0.2px;
}

/* ========== MODAL ========== */
.modal {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(15, 30, 60, 0.55);
    backdrop-filter: blur(6px);
    z-index: 2000;
    animation: fadeIn 0.2s ease;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to   { opacity: 1; }
}

.modal-content {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: white;
    padding: 40px;
    border-radius: var(--radius);
    width: 90%;
    max-width: 480px;
    box-shadow: 0 24px 80px rgba(30, 60, 114, 0.22);
    animation: slideUp 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
    z-index: 2001;
    border-top: 4px solid var(--primary);
}

@keyframes slideUp {
    from { opacity: 0; transform: translate(-50%, -44%); }
    to   { opacity: 1; transform: translate(-50%, -50%); }
}

.modal-content h2 {
    color: var(--primary-darker);
    border-bottom: 2px solid rgba(74, 144, 226, 0.15);
    padding-bottom: 14px;
    font-weight: 800;
    font-size: 20px;
    margin-bottom: 24px;
}

.close {
    color: #b0bec5;
    float: right;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
    line-height: 1;
    transition: var(--transition);
    background: none;
    border: none;
    padding: 0;
    margin-top: -4px;
}

.close:hover {
    color: var(--primary);
    transform: rotate(90deg);
}

.modal-confirm {
    text-align: center;
    max-width: 400px;
}

.confirm-icon {
    width: 68px;
    height: 68px;
    background: linear-gradient(135deg, #fff3cd 0%, #ffe49c 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 32px;
    color: #e6930a;
    box-shadow: 0 8px 24px rgba(230, 147, 10, 0.22);
}

.confirm-title {
    font-size: 20px;
    font-weight: 800;
    color: var(--primary-darker);
    margin-bottom: 10px;
}

.confirm-text {
    font-size: 14px;
    color: #778899;
    margin-bottom: 28px;
    line-height: 1.65;
}

.confirm-actions {
    display: flex;
    gap: 12px;
}

.confirm-actions .btn {
    flex: 1;
    margin: 0;
    padding: 12px 20px;
}

.btn-secondary {
    background: #f0f4f9;
    color: #555;
    border: 1.5px solid #dde4ef;
}

.btn-secondary:hover {
    background: #e2e8f4;
    border-color: #b0bec5;
}

.btn-danger {
    background: linear-gradient(135deg, var(--danger) 0%, #b52030 100%);
    color: white;
    box-shadow: 0 6px 20px rgba(220, 53, 69, 0.35);
}

.btn-danger:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 28px rgba(220, 53, 69, 0.45);
}

/* ========== RESPONSIVE ========== */
@media (max-width: 1024px) {
    .content-wrapper { padding: 24px; }
    .stats-container {
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
        padding: 24px;
        gap: 16px;
    }
}

@media (max-width: 768px) {
    .header {
        flex-direction: column;
        gap: 14px;
        padding: 18px 20px;
        text-align: center;
    }
    .header h1 { font-size: 22px; justify-content: center; }
    .stats-container { grid-template-columns: 1fr; padding: 18px; }
    .content-wrapper { padding: 18px; gap: 18px; }
    .section { padding: 20px; }
    .section h2 { font-size: 18px; }
    .stat-number { font-size: 38px; }
    .table { font-size: 12px; }
    .table th, .table td { padding: 11px 10px; }
    .actions { gap: 4px; }
    .modal-content { width: 95%; padding: 24px; }
    .chart-container { height: 280px; }
    .confirm-icon { width: 58px; height: 58px; font-size: 26px; }
    .alert { margin: 16px 18px; }
}